Merge branch 'main' into web-access-rule-tunings

Author: Aegrah

rules/cross-platform/multiple_alerts_elastic_defend_netsecurity_by_host.toml

@@ -2,7 +2,7 @@
 creation_date = "2025/11/18"
 integration = ["endpoint", "panw", "fortinet_fortigate", "suricata"]
 maturity = "production"
-updated_date = "2025/11/18"
+updated_date = "2025/11/28"
 
 [rule]
 author = ["Elastic"]
@@ -65,6 +65,9 @@ FROM logs-* metadata _id
         Esql.destination_ip_values = VALUES(destination.ip)
         by Esql.source_ip
 | where Esql.event_module_distinct_count >= 2
+| eval concat_module_values = MV_CONCAT(Esql.event_module_values, ",")
+// Make sure an endpoint alert is present along one of the network ones
+| where concat_module_values like "*endpoint*"
 | keep Esql.alerts_count, Esql.source_ip, Esql.destination_ip_values, Esql.host_id_values, Esql.user_name_values, Esql.event_module_values, Esql.message_values, Esql.process_executable_values
 '''
 note = """## Triage and analysis

rules/integrations/aws/ml_cloudtrail_error_message_spike.toml

@@ -2,7 +2,7 @@
 creation_date = "2020/07/13"
 integration = ["aws"]
 maturity = "production"
-updated_date = "2024/06/18"
+updated_date = "2025/11/18"
 
 [rule]
 anomaly_threshold = 50
@@ -112,3 +112,37 @@ tags = [
 ]
 type = "machine_learning"
 
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0007"
+name = "Discovery"
+reference = "https://attack.mitre.org/tactics/TA0007/"
+
+[[rule.threat.technique]]
+id = "T1526"
+name = "Cloud Service Discovery"
+reference = "https://attack.mitre.org/techniques/T1526/"
+
+[[rule.threat.technique]]
+id = "T1580"
+name = "Cloud Infrastructure Discovery"
+reference = "https://attack.mitre.org/techniques/T1580/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0004"
+name = "Privilege Escalation"
+reference = "https://attack.mitre.org/tactics/TA0004/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0008"
+name = "Lateral Movement"
+reference = "https://attack.mitre.org/tactics/TA0008/"
+

rules/integrations/aws/ml_cloudtrail_rare_error_code.toml

@@ -2,7 +2,7 @@
 creation_date = "2020/07/13"
 integration = ["aws"]
 maturity = "production"
-updated_date = "2024/06/18"
+updated_date = "2025/11/18"
 
 [rule]
 anomaly_threshold = 50
@@ -114,3 +114,61 @@ tags = [
 ]
 type = "machine_learning"
 
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0007"
+name = "Discovery"
+reference = "https://attack.mitre.org/tactics/TA0007/"
+
+[[rule.threat.technique]]
+id = "T1526"
+name = "Cloud Service Discovery"
+reference = "https://attack.mitre.org/techniques/T1526/"
+
+[[rule.threat.technique]]
+id = "T1580"
+name = "Cloud Infrastructure Discovery"
+reference = "https://attack.mitre.org/techniques/T1580/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0004"
+name = "Privilege Escalation"
+reference = "https://attack.mitre.org/tactics/TA0004/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0005"
+name = "Defense Evasion"
+reference = "https://attack.mitre.org/tactics/TA0005/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0008"
+name = "Lateral Movement"
+reference = "https://attack.mitre.org/tactics/TA0008/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0003"
+name = "Persistence"
+reference = "https://attack.mitre.org/tactics/TA0003/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0009"
+name = "Collection"
+reference = "https://attack.mitre.org/tactics/TA0009/"
+

rules/integrations/aws/ml_cloudtrail_rare_method_by_city.toml

@@ -2,7 +2,7 @@
 creation_date = "2020/07/13"
 integration = ["aws"]
 maturity = "production"
-updated_date = "2024/06/18"
+updated_date = "2025/11/18"
 
 [rule]
 anomaly_threshold = 50
@@ -116,3 +116,21 @@ tags = [
 ]
 type = "machine_learning"
 
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0001"
+name = "Initial Access"
+reference = "https://attack.mitre.org/tactics/TA0001/"
+
+[[rule.threat.technique]]
+id = "T1078"
+name = "Valid Accounts"
+reference = "https://attack.mitre.org/techniques/T1078/"
+
+[[rule.threat.technique.subtechnique]]
+id = "T1078.004"
+name = "Cloud Accounts"
+reference = "https://attack.mitre.org/techniques/T1078/004/"
+

rules/integrations/aws/ml_cloudtrail_rare_method_by_country.toml

@@ -2,7 +2,7 @@
 creation_date = "2020/07/13"
 integration = ["aws"]
 maturity = "production"
-updated_date = "2024/06/18"
+updated_date = "2025/11/18"
 
 [rule]
 anomaly_threshold = 50
@@ -116,3 +116,21 @@ tags = [
 ]
 type = "machine_learning"
 
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0001"
+name = "Initial Access"
+reference = "https://attack.mitre.org/tactics/TA0001/"
+
+[[rule.threat.technique]]
+id = "T1078"
+name = "Valid Accounts"
+reference = "https://attack.mitre.org/techniques/T1078/"
+
+[[rule.threat.technique.subtechnique]]
+id = "T1078.004"
+name = "Cloud Accounts"
+reference = "https://attack.mitre.org/techniques/T1078/004/"
+

rules/integrations/aws/ml_cloudtrail_rare_method_by_user.toml

@@ -2,7 +2,7 @@
 creation_date = "2020/07/13"
 integration = ["aws"]
 maturity = "production"
-updated_date = "2024/06/18"
+updated_date = "2025/11/18"
 
 [rule]
 anomaly_threshold = 75
@@ -114,3 +114,60 @@ tags = [
 ]
 type = "machine_learning"
 
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0001"
+name = "Initial Access"
+reference = "https://attack.mitre.org/tactics/TA0001/"
+
+[[rule.threat.technique]]
+id = "T1078"
+name = "Valid Accounts"
+reference = "https://attack.mitre.org/techniques/T1078/"
+
+[[rule.threat.technique.subtechnique]]
+id = "T1078.004"
+name = "Cloud Accounts"
+reference = "https://attack.mitre.org/techniques/T1078/004/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0008"
+name = "Lateral Movement"
+reference = "https://attack.mitre.org/tactics/TA0008/"
+
+[[rule.threat.technique]]
+id = "T1021"
+name = "Remote Services"
+reference = "https://attack.mitre.org/techniques/T1021/"
+
+[[rule.threat.technique.subtechnique]]
+id = "T1021.007"
+name = "Cloud Services"
+reference = "https://attack.mitre.org/techniques/T1021/007/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0003"
+name = "Persistence"
+reference = "https://attack.mitre.org/tactics/TA0003/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0010"
+name = "Exfiltration"
+reference = "https://attack.mitre.org/tactics/TA0010/"
+
+[[rule.threat.technique]]
+id = "T1041"
+name = "Exfiltration Over C2 Channel"
+reference = "https://attack.mitre.org/techniques/T1041/"
+

rules/ml/ml_high_count_events_for_a_host_name.toml

@@ -2,7 +2,7 @@
 creation_date = "2025/02/18"
 integration = ["endpoint"]
 maturity = "production"
-updated_date = "2025/02/18"
+updated_date = "2025/11/18"
 
 [rule]
 anomaly_threshold = 75
@@ -91,3 +91,60 @@ The detection of a spike in host-based traffic leverages machine learning to ide
 - Restore the affected host from a known good backup if malware or significant unauthorized changes are detected.
 - Implement network segmentation to limit the spread of potential threats and reduce the impact of similar incidents in the future.
 - Escalate the incident to the security operations center (SOC) or relevant team for further analysis and to determine if additional resources are needed for a comprehensive response."""
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0010"
+name = "Exfiltration"
+reference = "https://attack.mitre.org/tactics/TA0010/"
+
+[[rule.threat.technique]]
+id = "T1041"
+name = "Exfiltration Over C2 Channel"
+reference = "https://attack.mitre.org/techniques/T1041/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0040"
+name = "Impact"
+reference = "https://attack.mitre.org/tactics/TA0040/"
+
+[[rule.threat.technique]]
+id = "T1498"
+name = "Network Denial of Service"
+reference = "https://attack.mitre.org/techniques/T1498/"
+
+[[rule.threat.technique]]
+id = "T1499"
+name = "Endpoint Denial of Service"
+reference = "https://attack.mitre.org/techniques/T1499/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0002"
+name = "Execution"
+reference = "https://attack.mitre.org/tactics/TA0002/"
+
+[[rule.threat.technique]]
+id = "T1204"
+name = "User Execution"
+reference = "https://attack.mitre.org/techniques/T1204/"
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0004"
+name = "Privilege Escalation"
+reference = "https://attack.mitre.org/tactics/TA0004/"
+
+[[rule.threat.technique]]
+id = "T1068"
+name = "Exploitation for Privilege Escalation"
+reference = "https://attack.mitre.org/techniques/T1068/"